Diana Hoover Oil And Gas Field

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USA Oil & Gas Fields

Exxon Oil & Gas Fields

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Summary Information

  • Operator: Exxon
  • Country: USA
  • Location: Gulf of Mexico
  • Production start: 2000
  • Partners: Exxon 66%, Plains 33%
  • Type: Oil & Gas
  • Estimated Reserves:
  • Production Volume:


  • The DDCV, a catenary-moored steel cylindrical hull, floats vertically and is almost one-half a football field in diameter and 75 stories tall with drilling and production facilities installed. The DDCV production facilities are designed to handle 100,000 barrels per day of crude and 325 million cubic feet per day of gas.
  • New oil and gas pipelines will move the production to shore.
  • The Diana field is a subsea development with six wells tied back to the Hoover central facility. Subsea tiebacks are 85 miles for gas and 160 miles for oil
  • It was a world water depth record of 4,650 ft (1,420 m) at the time of completion
  • The Diana field is located in East Breaks Blocks 945, 946, 989, Diana South is in Alaminos Canyon Block 65 and the Hoover Field is in Alaminos Canyon Blocks 25 & 26
  • Crude from these fields is a constituent in Hoops Blend Crude Oil


  • Mustang Engineering: pre-FEED, FEED, detail design, procurement, and commissioning support for the offshore platform
  • FMC Technologies: Six horizontal 4"x2" 10,000 psi subsea trees
  • Saipem: Installation of n° 12 suction piles and mooring lines, Connection of DDCV to mooring system, Installation of Topsides, Hook-up support, Installation of 2 No. 15 kilometer lengths of 10” flowlines, Installation of 1 No. 15 kilometer lengths of 6” flowline, Installation of 2 No. 10” Steel Catenary Risers (SCR’s), Installation of 2 No. 18” SCR’s, Installation of 1 No. 6” SCR
  • Manatee: Flowline design and subsea operating procedures for Diana
  • Aker Solutions: Construction of DDCV
  • Jotun: Painting of DDCV


  • 1990 - The Diana field was discovered
  • 1997 - The Hoover and Diana South fields were discovered
  • 1997 - Project development launched
  • 1999 - Seaway Pipeline Announces Connection to Exxon's Hoover/Diana Pipeline
  • 2000 - A-Hoover Spar installed and production commenced
  • 2004 - Diana South production started
  • 2012 - BP sold its share of the field to Plains Exploration and Production



  1. Jotun FPSO References
  2. Mustang Engineering Platform References
  3. Manatee Offshore References
  4. Gulf Of Mexico Permanent Deepwater Structures
  5. Gulf Of Mexico Deepwater Natural Gas And Oil Qualified Fields
  6. ExxonMobil (Exxon) Diana, FMC
  7. Exxon Begins World's Deepest Water Drilling/Production Platform for Co-Development of Hoover/Diana Gulf of Mexico Fields
  8. Seaway Pipeline Announces Connection to Exxon's Hoover/Diana Pipeline
  9. BP to Sell Non-Strategic US Gulf Of Mexico Assets to Plains Exploration and Production Company

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